Agroup of environmentalists were discussing the benefits and drawbacks associated with using fossil fuels which argument best fits the conversation

Answer : Fossil fuels are cheaper than alternative forms of energy.

Explanation : Fossil fuels are considered to be the rich sources from fossils which were crushed down under the layers of rocks millions of years ago. It is assumed that in certain areas of the world where the decomposition of millions of organisms occurred very long ago. It is found to be simpler in some ways to collect and is distributed widely. This was the argument that fits best to the conversation between the group of environmentalists who were discussing between the benefits and drawbacks which are associated with using fossil fuels.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.